异质结
光催化
锐钛矿
金红石
材料科学
煅烧
半导体
化学工程
纳米技术
分解水
纳米结构
光电子学
化学
催化作用
生物化学
工程类
作者
Wenxiang Yang,Huilin Hou,Yang Yang,Guozhi Ma,Xiaoqiang Zhan,Hongli Yang,Weiyou Yang
标识
DOI:10.1016/j.colsurfa.2022.129881
摘要
Heterojunction engineering has been deemed as one of effective strategies to develop advanced photocatalysts for photocatalytic H2 evolution. In the present work, we report the rationally designed TiO2 (anatase)/TiO2 (rutile)/In2O3 (TiO2(A-R)/In2O3) heterojunctions through a one-step in situ calcination method for photocatalytic H2 evolution. The as-constructed TiO2(A-R)/In2O3 heterojunction photocatalysts deliver a H2 evolution rate of 268 μmol g−1 h−1, which is 1488 times greater than that of pristine In2O3. Such significantly enhanced behaviors could be attributed to the MXene-derived porous multilayer-like nanostructures, which offer more reactive sites, promote light harvesting, and accelerate the transfer of photogenerated carriers. Moreover, the formation of two type-II semiconductor heterojunctions with intimate contact among anatase TiO2, rutile TiO2 and In2O3 affords the synergetic effect for improved charge separation with boosted photocatalytic H2 evolution.
科研通智能强力驱动
Strongly Powered by AbleSci AI